mysql - Why do logins usually can contain only latin symbols and digits? -

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is user experience thing? or it's historically? mean, here no difference characters store in database. , special characters encoded anyways. what's matter?

it's artifact of history: holdover olden days of unix usernames. used limited 8 characters too; fortunately don't still cling particular tradition.

if you're creating web site today, can define username column utf8mb4 or utf8 character set. users' names can include sorts of characters worldwide languages, , emojis, , other glyphs.

please think through requirements case sensitivity in these enhanced usernames, , set collation username column appropriately.


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